<template>
  <div>
    <!-- 弹出层的头部区域 -->
    <van-nav-bar title="频道管理">
      <template #right>
        <van-icon
          name="cross"
          size="0.373334rem"
          color="white"
          @click="$emit('closePop')"
        />
      </template>
    </van-nav-bar>
    <!-- 我的频道 -->
    <div class="my-channel-box">
      <div class="channel-title">
        <span>我的频道 {{ show ? "点击移除频道" : "点击进入频道" }}</span>
        <span @click="show = !show">{{ show ? "完成" : "编辑" }}</span>
      </div>
      <!-- 我的频道列表 -->
      <van-row type="flex">
        <van-col
          span="6"
          v-for="obj in userChannelList"
          :key="obj.id"
          @click="delFn(obj)"
        >
          <div class="channel-item van-hairline--surround">
            {{ obj.name }}
            <!-- 删除的徽标 -->
            <van-badge
              v-if="show && obj.id !== 0"
              color="transparent"
              class="cross-badge"
            >
              <template #content>
                <van-icon
                  name="cross"
                  class="badge-icon"
                  color="#cfcfcf"
                  size="0.32rem"
                />
              </template>
            </van-badge>
          </div>
        </van-col>
      </van-row>
    </div>

    <!-- 更多频道 -->
    <div class="more-channel-box">
      <div class="channel-title">
        <span>点击添加更多频道：</span>
      </div>
      <!-- 更多频道列表 -->
      <van-row type="flex">
        <van-col
          span="6"
          v-for="item in unChannelList"
          :key="item.id"
          @click="addFn(item)"
        >
          <div class="channel-item van-hairline--surround">{{ item.name }}</div>
        </van-col>
      </van-row>
    </div>
  </div>
</template>

<script>
import { allChannelListAPI, updateChannelAPI } from '@/api'
export default {
  data () {
    return {
      allChannelList: [],
      show: false
    }
  },
  props: {
    userChannelList: {
      type: Array,
      default: () => []
    }
  },
  async created () {
    const res = await allChannelListAPI()
    this.allChannelList = res.data.data.channels
    console.log(this.allChannelList)
    console.log(this.userChannelList)
    console.log(this.unChannelList)
  },
  methods: {
    async updateFn () {
      const arr = []
      this.userChannelList.forEach((obj) => {
        arr.push({ ...obj })
      })
      const tIndex = arr.findIndex((obj) => obj.name === '推荐')
      arr.splice(tIndex, 1)
      arr.forEach((obj, index) => {
        delete obj.name
        obj.seq = index + 1
      })
      const res = await updateChannelAPI({ channels: arr })
      console.log(res)
    },
    addFn (item) {
      if (this.show === true) {
        this.userChannelList.push(item)
        // const res = this.updateChannelAPI
        // const arr = [...this.userChannelList]
        this.updateFn()
      }
    },
    delFn (obj) {
      if (this.show === true && obj.name !== '推荐') {
        const index = this.userChannelList.findIndex(
          (item) => item.id === obj.id
        )
        this.userChannelList.splice(index, 1)
        this.updateFn()
      } else {
        this.$emit('ccid', obj)
        this.$emit('closePop')
      }
    }
  },
  computed: {
    unChannelList () {
      return this.allChannelList.filter((obj) => {
        const index = this.userChannelList.findIndex(
          (item) => obj.id === item.id
        )
        if (index === -1) {
          return true
        } else {
          return false
        }
      })
    }
  }
}
</script>

<style scoped lang="less">
.van-popup,
.popup-container {
  background-color: transparent;
  height: 100%;
  width: 100%;
}

.popup-container {
  display: flex;
  flex-direction: column;
}

.pop-header {
  height: 90px;
  background-color: #007bff;
  color: white;
  text-align: center;
  font-size: 14px;
  position: relative;
  .title {
    width: 100%;
    position: absolute;
    bottom: 15px;
  }
}

.pop-body {
  flex: 1;
  overflow: scroll;
  padding: 8px;
  background-color: white;
}

.my-channel-box,
.more-channel-box {
  .channel-title {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    line-height: 28px;
    padding: 0 6px;
  }
}

.channel-item {
  font-size: 12px;
  text-align: center;
  line-height: 36px;
  background-color: #fafafa;
  margin: 5px;
}

/*删除的微标 */
.cross-badge {
  position: absolute;
  right: -3px;
  top: 0;
  border: none;
}

/*提示文字 */
.small_title {
  font-size: 12px;
  color: gray;
}
</style>
